Sony XBR-55X900H Service Manual page 32

2021/04/27 23:25:57 (GMT+09:00)
2.1 : 3x LED Blinking (DC Alert)
BM5/BM5S Board
3x blinking
(DC Alert)
Check "12.7V_MAIN"
at pin 5~8 of
CN1700/1701 on BM5 Board
or
CN1700 on BM5S Board,
Voltage = 12.2~13.2V?
NG
G Board
SAFETY NOTES
OK
SELF DIAGNOSTIC FUNCTION TROUBLESHOOTING
T R O U B L E S H O O T I N G
Error Item
Valhalla DC_ALERT
AUD_ERR
Check "5.0V_VBUS"
at C611
on BM5/BM5S board,
4.959V<Voltage<5.285V?
NG
BM5/BM5S Board
SERVICE ADJUSTMENT
Number of STBY LED Blinking Description
3 Main 5V power failure
3 Audio amp. protection
OK
Retry
DIAGRAM
32
HANDLING GUIDE
SYS SET